package com.xiaoma.springbootannotation.entity;

import java.io.Serializable;
import java.util.AbstractMap;
import java.util.Map;
import java.util.Set;

/**
 * @description: hashMap 源码
 * @Author: xiaoma
 * @Date: 2021/8/24 20:33
 */
public class HashMap<K,V> extends AbstractMap<K,V>
        implements Map<K,V>, Cloneable, Serializable {
    private static final long serialVersionUID = 362498820763181265L;

    @Override
    public Set<Entry<K, V>> entrySet() {
        return null;
    }
}
